Getting the value of a Batch File Variable that is within another Variable












0















I am trying to create a batch file that adds a Desktop shortcut to a network share using 'mklink'.
My code worked fine, but I have now found some users that have their desktop redirected. To get around this I have tried using 'reg query' to get the current desktop location



for /f "tokens=3" %%a in ('reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop  ^|findstr /ri "REG_EXPAND_SZ"') do set DTLOC=%%a
mklink %DTLOC%"Shortcut Name" "\NETWORK-PCShare Name" /D


The problem now is that for a normal Desktop location 'reg query' returns the string %USERPROFILE%desktop but as this is within a variable itself (DTLOC), it never resolves to the actual value. So all I can get from DTLOC is %USERPROFILE%desktop and not say c:usersusernamedesktop.
The actual command that is output from the batch file gives:



mklink %USERPROFILE%desktop"Shortcut Name" "\NETWORK-PCShare Name" /D


This causes the shortcut creation to fail with a 'file not found' error.



Is there a way to expand the output from 'reg query' to give the actual value, so that it can be used in the mklink command.










share|improve this question


















  • 1





    Insert a call command before: call mklink %DTLOC%...

    – Aacini
    Nov 22 '18 at 17:01













  • Adding the call works perfectly, Thank you.

    – dab
    Nov 23 '18 at 12:09
















0















I am trying to create a batch file that adds a Desktop shortcut to a network share using 'mklink'.
My code worked fine, but I have now found some users that have their desktop redirected. To get around this I have tried using 'reg query' to get the current desktop location



for /f "tokens=3" %%a in ('reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop  ^|findstr /ri "REG_EXPAND_SZ"') do set DTLOC=%%a
mklink %DTLOC%"Shortcut Name" "\NETWORK-PCShare Name" /D


The problem now is that for a normal Desktop location 'reg query' returns the string %USERPROFILE%desktop but as this is within a variable itself (DTLOC), it never resolves to the actual value. So all I can get from DTLOC is %USERPROFILE%desktop and not say c:usersusernamedesktop.
The actual command that is output from the batch file gives:



mklink %USERPROFILE%desktop"Shortcut Name" "\NETWORK-PCShare Name" /D


This causes the shortcut creation to fail with a 'file not found' error.



Is there a way to expand the output from 'reg query' to give the actual value, so that it can be used in the mklink command.










share|improve this question


















  • 1





    Insert a call command before: call mklink %DTLOC%...

    – Aacini
    Nov 22 '18 at 17:01













  • Adding the call works perfectly, Thank you.

    – dab
    Nov 23 '18 at 12:09














0












0








0








I am trying to create a batch file that adds a Desktop shortcut to a network share using 'mklink'.
My code worked fine, but I have now found some users that have their desktop redirected. To get around this I have tried using 'reg query' to get the current desktop location



for /f "tokens=3" %%a in ('reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop  ^|findstr /ri "REG_EXPAND_SZ"') do set DTLOC=%%a
mklink %DTLOC%"Shortcut Name" "\NETWORK-PCShare Name" /D


The problem now is that for a normal Desktop location 'reg query' returns the string %USERPROFILE%desktop but as this is within a variable itself (DTLOC), it never resolves to the actual value. So all I can get from DTLOC is %USERPROFILE%desktop and not say c:usersusernamedesktop.
The actual command that is output from the batch file gives:



mklink %USERPROFILE%desktop"Shortcut Name" "\NETWORK-PCShare Name" /D


This causes the shortcut creation to fail with a 'file not found' error.



Is there a way to expand the output from 'reg query' to give the actual value, so that it can be used in the mklink command.










share|improve this question














I am trying to create a batch file that adds a Desktop shortcut to a network share using 'mklink'.
My code worked fine, but I have now found some users that have their desktop redirected. To get around this I have tried using 'reg query' to get the current desktop location



for /f "tokens=3" %%a in ('reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop  ^|findstr /ri "REG_EXPAND_SZ"') do set DTLOC=%%a
mklink %DTLOC%"Shortcut Name" "\NETWORK-PCShare Name" /D


The problem now is that for a normal Desktop location 'reg query' returns the string %USERPROFILE%desktop but as this is within a variable itself (DTLOC), it never resolves to the actual value. So all I can get from DTLOC is %USERPROFILE%desktop and not say c:usersusernamedesktop.
The actual command that is output from the batch file gives:



mklink %USERPROFILE%desktop"Shortcut Name" "\NETWORK-PCShare Name" /D


This causes the shortcut creation to fail with a 'file not found' error.



Is there a way to expand the output from 'reg query' to give the actual value, so that it can be used in the mklink command.







file batch-file variables






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asked Nov 22 '18 at 16:58









dabdab

31




31








  • 1





    Insert a call command before: call mklink %DTLOC%...

    – Aacini
    Nov 22 '18 at 17:01













  • Adding the call works perfectly, Thank you.

    – dab
    Nov 23 '18 at 12:09














  • 1





    Insert a call command before: call mklink %DTLOC%...

    – Aacini
    Nov 22 '18 at 17:01













  • Adding the call works perfectly, Thank you.

    – dab
    Nov 23 '18 at 12:09








1




1





Insert a call command before: call mklink %DTLOC%...

– Aacini
Nov 22 '18 at 17:01







Insert a call command before: call mklink %DTLOC%...

– Aacini
Nov 22 '18 at 17:01















Adding the call works perfectly, Thank you.

– dab
Nov 23 '18 at 12:09





Adding the call works perfectly, Thank you.

– dab
Nov 23 '18 at 12:09












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The solution is to use call, which introduces another parsing phase of the command line, so nested variables become expanded too. In addition, let me recommend to adapt quotation as follows:



for /f "tokens=3" %%a in ('
reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop ^|findstr /ri "REG_EXPAND_SZ"
') do set "DTLOC=%%a"
call mklink "%DTLOC%Shortcut Name" "\NETWORK-PCShare Name" /D





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    The solution is to use call, which introduces another parsing phase of the command line, so nested variables become expanded too. In addition, let me recommend to adapt quotation as follows:



    for /f "tokens=3" %%a in ('
    reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop ^|findstr /ri "REG_EXPAND_SZ"
    ') do set "DTLOC=%%a"
    call mklink "%DTLOC%Shortcut Name" "\NETWORK-PCShare Name" /D





    share|improve this answer




























      0
















      The solution is to use call, which introduces another parsing phase of the command line, so nested variables become expanded too. In addition, let me recommend to adapt quotation as follows:



      for /f "tokens=3" %%a in ('
      reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop ^|findstr /ri "REG_EXPAND_SZ"
      ') do set "DTLOC=%%a"
      call mklink "%DTLOC%Shortcut Name" "\NETWORK-PCShare Name" /D





      share|improve this answer


























        0












        0








        0









        The solution is to use call, which introduces another parsing phase of the command line, so nested variables become expanded too. In addition, let me recommend to adapt quotation as follows:



        for /f "tokens=3" %%a in ('
        reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop ^|findstr /ri "REG_EXPAND_SZ"
        ') do set "DTLOC=%%a"
        call mklink "%DTLOC%Shortcut Name" "\NETWORK-PCShare Name" /D





        share|improve this answer















        The solution is to use call, which introduces another parsing phase of the command line, so nested variables become expanded too. In addition, let me recommend to adapt quotation as follows:



        for /f "tokens=3" %%a in ('
        reg query "HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell Folders" /v Desktop ^|findstr /ri "REG_EXPAND_SZ"
        ') do set "DTLOC=%%a"
        call mklink "%DTLOC%Shortcut Name" "\NETWORK-PCShare Name" /D






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 22 '18 at 17:15









        aschipflaschipfl

        18.5k82856




        18.5k82856






























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